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Optical Systems

Document-gap-detecting-device-for-use-in-facsimile

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Document gap detecting device for use in facsimile

Details

Inventors: Kim, Moon T.;
Assignee: Goldstar Co. Ltd. (KR)
Primary Examiner: Coles, Sr.; Edward L.
Assistant Examiner: Grant, II; Jerome
Attorney, Agent or Firm:

A document gap detecting device for facsimile is disclosed in which the bottom plate is formed in a stepped shape, and the linear speeds of an ADF roller and a carrying roller are designed to be same, thereby making it possible to produce a gap between the continuously fed document sheets without requiring a difference between the linear speeds of the ADF roller and the carrying roller. There are further provided with transmitting and receiving optical sensors. According to the present invention, there will occur no undesirable phenomenon such that the sheet at the receiving end is outputted in an extended length.

DETAILED DESCRIPTION The present invention is intended to overcome the above described disadvantaged of the conventional device.
Therefore, it is the object of the present invention to provide a facsimile document feeding device in which a document guide having a step shaped coutour is installed at the transmitting end of the facsimile, so that, when a plurality of document sheets are fed automatically and continuously, the linear velocities of the ADF roller and the carrying roller should be same as each other, and at the same time, a gap should be produced between two continuously fed document sheets.

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